ML4825
PIN CONFIGURATION
ML4825
16-Pin PDIP
16-Pin SOIC
ML4825
20-Pin PLCC
INV
NI
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
5.1V REF
V
CC
3
2
1
20 19
E/A OUT
CLOCK
NC
4
5
6
7
8
18
17
16
15
14
OUT B
E/A OUT
CLOCK
OUT B
V
C
V
C
NC
R
C
PWR GND
OUT A
GND
T
R
T
PWR GND
OUT A
C
T
T
9
10 11 12 13
RAMP
SS
I
/SD
LIM
TOP VIEW
TOP VIEW
PIN DESCRIPTION (Pin number in parentheses is for PLCC version)
PIN
NAME
FUNCTION
PIN
NAME
FUNCTION
1 (2) INV
2 (3) NI
Inverting input to error amp.
9 (12) I /SD
Current limit sense pin. Normally
connected to current sense resistor.
LIM
Non-inverting input to error amp.
10 (13) GND
Analog signal ground
3 (4) E/A OUT
Output of error amplifier and input
to main comparator
11 (14) OUT A
High current totem pole output. This
output is the first one energized after
power on reset
4 (5) CLOCK
Oscillator output
5 (7)
R
Timing resistor for oscillator—
sets charging current for oscillator
timing capacitor (pin 6)
12 (15) PWR GND Return for the high current totem
pole outputs
T
13 (17) V
Positive supply for the high current
totem pole output
C
6 (8)
C
Timing capacitor for oscillator
T
7 (9) RAMP
Non-inverting input to main
14 (18) OUT B
15 (19) V
High current totem pole output
Positive supply for the IC
comparator. Connected to C for
T
voltage mode operation or to current
sense resistor for current mode
CC
16 (20) 5.1V REF Buffered output for the 5.1V voltage
reference
8 (10) SS
Normally connected to soft start
capacitor
2
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
